[填空题]
An oxygen molecule consists of two oxygen atoms whose totps4940jp2-bp (n qzfr6k;hugw2so lqald zh/ f;cgn9lu :4j0sf9e5;+s slormw mass is $5.3 \times10^{ -26}$ kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is $ 1.9\times10^{-46 }$ $kg \cdot m^2$ From these data, estimate the effective distance between the atoms. $\times10^{-10 }$ m